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5G NG-RAN Signalling

ran engineers
available worldwide
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Who Should Attend?

The course is addressed to network engineers involved in the network design and optimisation, managerial staff responsible for network operation and anybody who requires detailed knowledge on 5G NG-RAN signalling and function.


Course Scope

  1. 5G System Architecture
    • Overall Network Architecture
    • Nodes, functions and interfaces
    • 5G identities
  2. 5G Protocol Architecture
    • Introduction (SAP, OSI model)
    • NG-RAN protocol layer
    • Strata (NAS, AS)
    • User plane
    • Control plane
    • QoS flow, profile, architecture
    • Radio interface structure
    • 3GPP TS for 5G
  3. Non-Access Stratum
    • Domain selection
    • Network slicing
    • 5GC mobility management (states, behaviour, procedures)
    • 5GS session management (states, QoS, LADN, procedures)
  4. RRC
    • RRC protocol architecture
    • RRC services and functions
    • SRBs
    • RRC procedures and messages (system information, paging, RRC connection establishment, initial security activation, RRC connection reconfiguration, RRC connection re-establishment, RRC connection release, radio link failure related actions)
  5. NGAP
    • NGAP protocol architecture
    • NGAP procedures (PDU session management procedures, UE context management procedures, UE mobility management procedures, paging, interface management procedures)
  6. XnAP
    • XnAP protocol architecture
    • XnAP procedures (basic mobility procedures, procedures for Dual Connectivity, global procedures)
  7. F1AP
    • F1AP protocol architecture
    • F1AP procedures (interface management procedures, UE context management procedures, RRC message transfer procedures)
  8. Mobility
    • Intra-NR (measurements, mobility in RRC_IDLE, RRC_INACTIVE and RRC_CONNECTED)
    • Inter RAT (intra 5GC, from 5GC to EPC)
    • Roaming and access restrictions
  9. 5G security
    • Security architecture
    • 5G key hierarchy
    • Authentication
    • NAS security
    • RRC security
    • Security of non-3GPP access
  10. SDAP
    • SDAP protocol architecture
    • SDAP services and functions
    • SDAP procedures
    • SDAP PDU formats
  11. PDCP
    • PDCP protocol architecture
    • PDCP services and functions
    • PDCP procedures
    • PDCP PDU formats
  12. RLC
    • RLC protocol architecture
    • RLC services and functions
    • RLC procedures and parameters
    • RLC PDU formats
  13. MAC
    • MAC protocol architecture
    • MAC services and functions
    • MAC procedures and parameters
    • MAC PDU formats
  14. NR physical layer
    • NR physical layer structure
    • Downlink physical channels and signals (P-SS, S-SS, PBCH, PT-RS, DM-RS, CSI-RS, PDCCH, PDSCH)
    • Uplink physical channels and signals (PT-RS, DM-RS, SRS, PUCCH, PUSCH, PRACH)

Course Objectives

The 5G NG-RAN Signalling course offers a complete understanding of all signalling protocols implemented in the NG-RAN. The course presents the 5G architecture with its nodes, interfaces and protocol stacks and describes protocols through functions and and services they provide. The course focuses on the details of the NR interface signalling exchanged between the UE and the network, however the most important aspects of other NG-RAN interfaces are also covered. Most important network procedures, such as signalling connection establishment, registration, service request and handover are discussed and presented on signalling diagrams.

The course is based on the 3GPP Release 15 version September 2018 and it is equipment vendor independent.



Earlier participation in the LTE Signalling training would be beneficial.  


Training Structure 

Four-day training divided into logical sessions.



Instructor-led training.

Experienced trainer. Excellent descriptions.

Mr. Ahmad Doar, Mobily, KSA

Training was above expectations!

Mr. Ariel Haxhiu, Eagle Mobile, AL

A lot of useful materials and knowledge.

Mr. Shukhrat Khaydar, UCell

More than excellent course!

Ms. Inessa Mijiferjyan, Vivacell

Excellent, knowledgeable trainer, open to communication.

Mr. Dmitrii Kropotov, Tele2 Russia

A good approach to a complex problem.

Ms. Horia Catrinoiu, Vodafone RO

Unique training covering the most important areas of my work.

Mr. Eldar Mursaqulov, Azercell

Professional, high-quality trainer.

Mr. Gagik Shatveryan, Vivacell

Very well organized training programmes.

Mr. Mihnea Teodorescu, Cosmote, RO

The training is completely excellent.

Mr. Philipp Korostelev, Beeline Moscow

Really practical and very fruitful training.

Mr. Niroj Raya, NCell Nepal

The course covers all the impacted areas.

Ms. Gratia Scanteie, Vodafone, RO

Trainer adapted to the expectations of the audience.

Mr. Antoine Blanchet, Monaco Telecom

The training exceeded my expectations.

Ms. Irida Gjashta, AMC Albania

Good direct connection between course material and real problems.

Mr. Alex Konstantopoulos, Cosmote, GR

The course exceeded my expectations. Hats off!

Mr. Adnan Syed, Mobily

Very clear explanations.

Ms. Tatyana Krasyuk, Life Ukraine

I feel like the trainer is the best professor and mentor one can have.

Ms. Ledia Meici, AMC Albania

Overwhelming knowledge and expertise. Interactive and enjoyable learning.

Mr. Ashish Shrestha, NCell Nepal

Trainers have passion to teach & impart knowledge.

Mr. Kanchan Chitrakar, Ncell Nepal

Very effective training methods.

Ms. Erjona Xhemali, AMC Albania

The trainer is capable of answering all my questions.

Ms. Ana Gheorghe, Vodafone RO

Excellent knowledge from the trainer.

Ms. Catherine Barman, Swisscom

Amazing, more than excellent, audience-oriented trainer.

Mr. Evgeniy Dmitriev, Astelit Ukraine

I am very impressed with the trainer's knowledge and experience.

Mr. Mouin Al Saghir, Vivacell

Trainer is open for comments and discussion.

Ms. Natalya Nerubenko, Life Ukraine

Course covers all important issues and presents relevant examples.

Mr. Mohamed Kamel, Vodafone Egypt

Seminar entirely for Telecommunication operators. A lot of issues covered.

Ms. Pinelopi Tragoudara, Vodafone GR

Many different people from different operators can share their problems and ideas.

Mr. Omar El-Fiky, Vodafone Egypt

Perfect course.

Mr. Arseniy Mazanik, Beeline Russia

Excellent course and instructor.

Mr. Nikolay Suetin, Beeline Russia

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

This course will be very useful in my daily work.

Mr. Leopoldino Ferreira, Unitel Angola

Trainer was able to answer practical questions.

Mr. Daniel Krolikowski, Play Poland

Trainer understands local market experience.

Mr. Andrew Sweetman, Wataniya

Great teacher with deep knowledge and experience.

Mr. Philippe Wrzecionek, TATA

Regardless of technology I received theoretical and practical answers.

Mr. Kosta Pribić, T-Mobile Croatia

Good class notes and great examples.

Mr. Ghaffar Masood, Mobilink Pakistan

I received a lot of useful information which I use in my work every day.

Ms. Viktoriya Gusarova, Beeline RU

Good logical structure of the course and explanation.

Ms. Elena Shevtsova, Beeline, KZ

Highly professional trainer with lots of practical experience. Friendly and open.

Ms. Olga Rudnicka, Tele2 Latvia

The best training ever.

Mr. Timur Zagretdinov, MTT Russia

Excellent methodology of teaching. Simple and easy to understand training.

Mr. Arben Shabani, PTK Kosovo

Experienced trainer. Real cases with references to recommendations.

Mr. David Curkan, T-Mobile Croatia

I can proudly recommend these courses for others as well.

Mr. Tarvo Jammer, Elisa Estonia

A clear picture of GSM switching and signalling.

Ms. Anette Chale, mCel Mozambique

The whole course was very valuable.

Mr. Sayyid Ali, Dhiraagu Maldives

Training provides useful methods to analyze real protocols.

Mr. Seema Karn, NCell Nepal

Everyone gets individual attention from the trainer.

Ms. Inga Tomsone, Tele2 Latvia

Excellent exercises!

Mr. Muhammad Ali, Mobilink Pakistan

Deep and detailed topic analysis.